0) First of all, if not yet done, get the capacitors on the A1200 replaced! A so called "recap" is essential to make sure your A1200 will live on for many years to come. Hopefully someone in your surroundings can offer you such a service for a friendly price. If not I think you can even ask AmigaKit to do it for you.
1) My personal preferred way of transferring files is via WinUAE on a PC. WinUAE does read Amiga formatted CF cards, just Windows itself doesn't. Only thing additional you need for this, is a USB CF reader for your PC, if you don't have it yet. Look at this tutorial for example:
https://www.youtube.com/watch?v=Zd42RsKHm5Y&list=PLtnFAdZ4Ec1BhyWFBHLqFTVEKCJN17CG0&index=22) If you're A1200 is really stock with only 2MB chip mem, you need at least more memory to make WHDLoad run well enough. I guess the budget ACA1221, maybe even without all optional extra power unlocked, is very suitable for a WHDLoad machine. However, I don't know how compatible this card is and whether you need the so called "timing fix" mod to have the A1200 run stable enough with this card. You could ask for the timing fix to be done together with the recap job. A safer bet would then be, get a Phase5 Blizzard 1230 MKIV. Runs rock solid even without the timing fix.
3) If you have a decent WHDLoad machine, I don't know why you would want a Gotek as well.
4) Use a TV with SCART, get a scandoubler, or get an LCD monitor that supports Amiga signals, like the great Benq BL912 & BL702A
5) Network access is easy, but not absolutely necessary. You could grab a nice wifi card from this guy over at EAB:
http://eab.abime.net/showthread.php?t=81915
